July Weather in Islesboro, United States

Last updated: June 24, 2025

In July, the average temperature in Islesboro, United States is a comfortable 17°C (63°F), with minimums dipping to 12°C (54°F) and maximums reaching 25°C (78°F). Expect some rain, with around 100 mm (3.9 in) of precipitation spread across 11 days. Additionally, the air feels quite humid, with an average humidity level of 74%.

July Temperature in Islesboro

In July in Islesboro, the average temperature is 17°C (63°F). Maximums can reach 25°C (78°F), and minimums can be as low as 12°C (54°F). This pleasant climate makes it an ideal time for outdoor activities and exploring the local attractions.

July Weather in Islesboro: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Islesboro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Islesboro, July typically has an average temperature of 17°C (63°F), with highs reaching up to 25°C (78°F) and lows dropping to around 12°C (54°F).

Data source: Temperature data for Islesboro generated using information from the Copernicus Climate Change Service.

July Precipitation in Islesboro

In Islesboro in July, the precipitation amount is 100 mm (3.9 in) over the course of 11 days.

July Precipitation Trends in Islesboro

The chart displays monthly precipitation patterns in Islesboro, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Islesboro, July typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Islesboro

In Islesboro in July, humidity is 74%. With an average temperature of 17°C (63°F), this humidity feels like a gentle embrace, making outdoor exploration comfortable yet slightly enveloped in warmth, perfect for leisurely strolls but requiring ample hydration for prolonged activities.

July Average Humidity in Islesboro

This chart illustrates the average monthly humidity levels in Islesboro, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Islesboro is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Islesboro

In Islesboro in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Islesboro.

Maximum UV Index Levels in Islesboro for July

The chart shows the monthly maximum UV Index (UVI) for Islesboro in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Islesboro typically reaches 9, which falls under the very high exposure category.

Data source: Islesboro July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How July Weather in Islesboro Compares to Other Months

Weather in Islesboro varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Islesboro, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Islesboro, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	112 mm (4.4 inches)	88%	low
February Weather	-2°C (29°F)	108 mm (4.2 inches)	88%	moderate
March Weather	0°C (33°F)	89 mm (3.5 inches)	85%	moderate
April Weather	5°C (41°F)	169 mm (6.7 inches)	81%	high
May Weather	9°C (49°F)	114 mm (4.5 inches)	76%	very high
June Weather	14°C (58°F)	87 mm (3.4 inches)	74%	very high
July Weather	17°C (63°F)	100 mm (3.9 inches)	74%	very high
August Weather	18°C (65°F)	90 mm (3.5 inches)	74%	very high
September Weather	16°C (61°F)	99 mm (3.9 inches)	77%	high
October Weather	12°C (54°F)	169 mm (6.6 inches)	82%	moderate
November Weather	6°C (42°F)	145 mm (5.7 inches)	85%	moderate
December Weather	0°C (33°F)	160 mm (6.3 inches)	84%	low